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$444+ Cheap flights from St. Louis (STL) to Copenhagen (CPH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CPH
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from St. Louis to Copenhagen

Cheapest flights from St. Louis to Copenhagen
Explore the most affordable flight options available from St. Louis to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This oojo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:59 am
STL
-
CPH
2 stops16h 21m
British Airways
Wed 3/41:00 pm
CPH
-
STL
2 stops37h 29m
British Airways
Deal found 1/26$528
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:05 pm
STL
-
CPH
2 stops15h 00m
Multiple Airlines
Wed 3/46:50 am
CPH
-
STL
1 stop14h 05m
Multiple Airlines
Deal found 1/26$530
This Cheapflightsfares deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2411:39 am
STL
-
CPH
2 stops22h 56m
Lufthansa
Tue 3/310:10 am
CPH
-
STL
2 stops20h 49m
Lufthansa
Deal found 1/25$531
This United Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:20 pm
STL
-
CPH
1 stop13h 30m
United Airlines
Mon 5/119:40 am
CPH
-
STL
2 stops42h 28m
United Airlines
Deal found 1/24$552
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:40 am
STL
-
CPH
2 stops21h 45m
United Airlines
Wed 3/1810:05 am
CPH
-
STL
2 stops35h 24m
United Airlines
Deal found 1/25$553
This Finnair deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:27 pm
STL
-
CPH
2 stops20h 48m
Finnair
Mon 5/117:25 pm
CPH
-
STL
2 stops31h 05m
Finnair
Deal found 1/24$556
This United Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:00 am
STL
-
CPH
2 stops20h 45m
United Airlines
Sun 3/1510:05 am
CPH
-
STL
2 stops35h 24m
United Airlines
Deal found 1/24$565
This Air Canada deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:41 am
STL
-
CPH
3 stops18h 39m
Multiple Airlines
Tue 3/312:45 pm
CPH
-
STL
2 stops33h 44m
Multiple Airlines
Deal found 1/25$573
This Gotogate deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:05 pm
STL
-
CPH
2 stops15h 30m
Multiple Airlines
Wed 3/186:50 am
CPH
-
STL
1 stop14h 05m
Multiple Airlines
Deal found 1/25$635
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/510:00 am
STL
-
CPH
2 stops16h 20m
United Airlines
Mon 3/162:20 pm
CPH
-
STL
2 stops37h 56m
United Airlines
Deal found 1/27$639

Find flight deals from St. Louis to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Copenhagen (CPH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$528
(oojo)

One-way from

$444
(Iberia)

Popular in

June

Cheapest in

February

Average price

$680
Provider with most accurate pricing for Lambert-St Louis-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Kastrup Copenhagen flights.
Search Deals
From Lambert-St Louis to Kastrup Copenhagen
Search Deals
One-way flight from Lambert-St Louis to Kastrup Copenhagen
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Copenhagen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from St. Louis to Copenhagen that are best for you.

Fly from

St. Louis

Fly to

Copenhagen

Route

Depart

Return

Price

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 2/25

4:05 pm-2:05 pm

2 stops15h 00m

Kastrup Copenhagen

Wed 3/4

6:50 am-1:55 pm

1 stop14h 05m

$530

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Tue 2/24

11:39 am-5:35 pm

2 stops22h 56m

Kastrup Copenhagen

Tue 3/3

10:10 am-11:59 pm

2 stops20h 49m

$531

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 5/6

2:20 pm-10:50 am

1 stop13h 30m

Kastrup Copenhagen

Mon 5/11

9:40 am-9:08 pm

2 stops42h 28m

$552

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 3/11

7:40 am-11:25 am

2 stops21h 45m

Kastrup Copenhagen

Wed 3/18

10:05 am-3:29 pm

2 stops35h 24m

$553

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 5/6

12:27 pm-4:15 pm

2 stops20h 48m

Kastrup Copenhagen

Mon 5/11

7:25 pm-7:30 pm

2 stops31h 05m

$556

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 3/5

10:00 am-1:45 pm

2 stops20h 45m

Kastrup Copenhagen

Sun 3/15

10:05 am-3:29 pm

2 stops35h 24m

$565

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Wed 3/11

4:05 pm-1:35 pm

2 stops15h 30m

Kastrup Copenhagen

Wed 3/18

6:50 am-2:55 pm

1 stop14h 05m

$635

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Thu 3/5

10:00 am-9:20 am

2 stops16h 20m

Kastrup Copenhagen

Mon 3/16

2:20 pm-10:16 pm

2 stops37h 56m

$639

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Sat 3/7

7:41 am-5:30 pm

2 stops26h 49m

Kastrup Copenhagen

Sun 3/15

10:05 am-3:29 pm

2 stops35h 24m

$652

St. LouisCopenhagen

STL - CPH

STLCPH

Lambert-St Louis

Mon 6/15

5:18 pm-4:50 pm

2 stops16h 32m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 18 results
1
2

Compare providers for flights from St. Louis to Copenhagen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Copenhagen in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Copenhagen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Copenhagen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Copenhagen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Copenhagen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Copenhagen

How far ahead should I book a flight from St. Louis to Copenhagen?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Copenhagen. Price data was last updated on January 23, 2026.

The best time to book flights from St. Louis to Copenhagen is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Copenhagen?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Copenhagen (average of $536). Flying from St. Louis to Copenhagen in June is currently the most expensive (average of $856). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from St. Louis to Copenhagen?

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Copenhagen. Reviews last updated January 27, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Copenhagen have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,119 reviews
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,660 reviews
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,749 reviews
Delta
7.9
Good
8,119 reviews

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Copenhagen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Copenhagen?

    Airlines like Lufthansa and United Airlines fly from St. Louis to Copenhagen in about 13h 30m. The time it takes to get you to your destination can typically vary by up to 9h 26m. The distance between St. Louis and Copenhagen is about 4511 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Copenhagen round-trip?

    Our cheapest airline available from St. Louis to Copenhagen is British Airways. Our recent data shows that you can find tickets from as low as $523 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $593 and $598 round-trip. These flights start at 35% lower than the current average price 3 months from now.

  • Can I find deals for flights from St. Louis to Copenhagen that include hotel bookings?

    Yes. In addition to deals on St. Louis to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Copenhagen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Copenhagen.

  • Can I find deals for business class flights from St. Louis to Copenhagen?

    Yes. Cheapflights offers flight deals from St. Louis to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Copenhagen?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Copenhagen (average of $536). Flying from St. Louis to Copenhagen in June is currently the most expensive (average of $856). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
Kastrup

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Copenhagen

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Copenhagen flights

Top 8 airlines flying from St. Louis to Copenhagen

Discover the top 8 airlines that operate flights from St. Louis to Copenhagen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$523Average$837FlexibilityNo cancel feeOn-time70%
DeltaCheapest$593Average$785FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$598Average$818FlexibilityNo cancel feeOn-time69%
KLMCheapest$625Average$746FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$659Average$950FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$661Average$938FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$662Average$878FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$733Average$1,032FlexibilityNo cancel feeOn-time71%

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